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2 years ago

Use linear regression to find a function that fits the following points (1,4),(2,2),(5,8)

Mathematics

1 answer:

RSB [31]2 years ago

6 0

Answer: y = 1.231x + 1.385, $r^2$ = .703, r = .839

Step-by-step explanation:

If you plug these points into a TI-84 and use the linear regression function, you'll get this result.

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Kristine buys a 4-ounce bar of baking chocolate for 3.76. What is the unit price per ounce?

mart [117]

Sorry took so long doing homework at the same time! lol

ok so, all you have to do is divide 3.76 by 4 to get unit $:

3.76/4= $0.94

Hope this helps!! :)

3 0

3 years ago

Michael paid a repairman dollars per hour for a 4-hour job plus $69 for parts. The total charge was $320. Which equation can be

Stels [109]

Answer:

The answer is d) 4d = 320 - 60 becasue d is the dollors he made per hour and the repairman worked for 4 hours so you multiply 4 times d and then you subtract 60 from the total to get your final answer. If you subtracted already then you would divide that answer by 4 then you would find out how much the repairman maid per hour.

5 0

3 years ago

Which of the following is the product of the rational expressions shown below?

Vika [28.1K]

Answer:

Step-by-step explanation:

<em>a/b × d/c = a×d / b×</em><em>c</em>

Multiply the numerators 1st.

x × x = x^2

Next is the Denominator.

x+3 × x+2

now try to multiply each term of the 1st expression with the 2nd.

x × x + x × 2 + 3 × x + 6

x^2 + 2x + 3x + 6

x^2 + 5x + 6

Write the numerator & denominator in their respective places.

x^2 / x^2 + 5x + 6

7 0

3 years ago

The original temperature is 29.9 the temperature decreases by 8.7 and then again by 17.8 what is the final temperature?

Inga [223]

Answer:

the final temperature is 39.0

7 0

4 years ago

What is the greatest number of rectangles 6cm x 4cm that can be cut from a piece of metal measures 16 cm x 20 cm?

Dominik [7]

Answer:

The greatest number of rectangles that can be cut from the piece of metal = 12

Explanation:

The dimension of the piece of metal = 16cm x 20cm

That is:

Length of the piece of metal = 20 cm

Width of the piece of metal = 16 cm

The dimension of the rectangle = 6cm x 4cm

Length of the rectangle = 6cm

Width of the rectangle = 4cm

The diagram below illustrates how the rectangles can be cut from the piece of metal

Considering the diagrams drawn above, and counting the rectangles formed, we can conclude that the greatest number of rectangles will be cut using the approach on the left, hence the greatest number of rectangles that can be cut is 12

7 0

1 year ago